TrioCFD 1.9.9_beta
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Diffusion_croisee_echelle_temp_taux_diss_turb_VDF.cpp
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15
16#include <Diffusion_croisee_echelle_temp_taux_diss_turb_VDF.h>
17
18#include <Convection_diffusion_turbulence_multiphase.h>
19#include <Dissipation_type_helpers.h>
20#include <face_to_elem_VDF.h>
21#include <Champ_Inc_P0_base.h>
22#include <Domaine_VF.h>
23#include <Pb_Multiphase.h>
24
25Implemente_instanciable(Diffusion_croisee_echelle_temp_taux_diss_turb_VDF,"Diffusion_croisee_echelle_temp_taux_diss_turb_VDF_P0_VDF", Source_Diffusion_croisee_echelle_temp_taux_diss_turb);
26
28
30
31void Diffusion_croisee_echelle_temp_taux_diss_turb_VDF::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
32{
33 const Domaine_VF& domaine = ref_cast(Domaine_VF, equation().domaine_dis());
34 const Champ_Inc_P0_base& ch_k = ref_cast(Champ_Inc_P0_base, equation().probleme().get_champ("k"));
35 const DoubleTab& k_passe = ch_k.passe();
36 const DoubleVect& pe = equation().milieu().porosite_elem();
37 const DoubleVect& ve = domaine.volumes();
38
39 const Champ_Inc_P0_base& ch_diss = ref_cast(Champ_Inc_P0_base, equation().inconnue());
40 const DoubleTab& diss_passe = ch_diss.passe();
41 const DoubleTab& diss = ch_diss.valeurs();
42
43 const int nf_tot = domaine.nb_faces_tot();
44 const int D = dimension;
45 const int ne = domaine.nb_elem();
46 const int ne_tot = domaine.nb_elem_tot();
47 const int N = diss_passe.line_size();
48
49 const std::string Type_diss = get_dissipation_type(equation());
50 Matrice_Morse *Mdiss = matrices.count(Type_diss) ? matrices.at(Type_diss) : nullptr;
51
52 assert(N == 1 || k_passe.line_size() == 1);
53
54 /* Calcul de grad de tau ou de omega aux faces */
55
56 DoubleTab grad_f_diss(nf_tot, N);
57 assert(diss_passe.dimension_tot(0) == ne_tot);
59 const Operateur_Grad& Op_Grad_diss = eq_diss.operateur_gradient_inconnue();
60 Op_Grad_diss.calculer(diss_passe, grad_f_diss);
61
62 /* Calcul de grad de k aux faces */
63
64 DoubleTab grad_f_k(nf_tot, N);
65 assert(k_passe.dimension_tot(0) == ne_tot);
67 const Operateur_Grad& Op_Grad_k = eq_k.operateur_gradient_inconnue();
68 Op_Grad_k.calculer(k_passe, grad_f_k);
69
70 /* Interpolation des gradients aux elements */
71 DoubleTab grad_e_diss(ne_tot, N, D);
72 DoubleTab grad_e_k(ne_tot, N, D);
73 face_to_elem_VDF(domaine, grad_f_diss, grad_e_diss);
74 face_to_elem_VDF(domaine, grad_f_k, grad_e_k);
75
76 /* Calcul du produit scalaire grad(diss).grad(k) aux elements */
77
78 DoubleTab grad_diss_dot_grad_k(ne, N);
79 for (int n = 0; n < N; n++)
80 for (int e = 0; e < ne; e++)
81 {
82 grad_diss_dot_grad_k(e, n) = 0;
83 for (int d = 0; d < D; d++)
84 grad_diss_dot_grad_k(e, n) += grad_e_diss(e, n, d) * grad_e_k(e, n, d);
85 }
86
87 /* Remplissage des matrices et du second membre */
88
89 for (int e = 0; e < ne; e++)
90 for (int n = 0; n < N; n++)
91 {
92 const double peve = pe(e) * ve(e);
93
94 if (Type_diss == "tau")
95 {
96 // Source: sigma_d * tau * min(grad(tau).grad(k), 0)
97 const double dot_min = std::min(grad_diss_dot_grad_k(e, n), 0.);
98 secmem(e, n) += peve * sigma_d_ * diss(e, n) * dot_min;
99
100 // Jacobian w.r.t. tau
101 if (Mdiss)
102 (*Mdiss)(N * e + n, N * e + n) -= peve * sigma_d_ * dot_min;
103 }
104 else if (Type_diss == "omega")
105 {
106 if (diss(e, n) > 1.e-8)
107 {
108 // Source: sigma_d / omega * max(grad(omega).grad(k), 0) (linearized)
109 const double dp = std::max(diss_passe(e, n), 1.e-6);
110 const double dot_max = std::max(grad_diss_dot_grad_k(e, n), 0.);
111 secmem(e, n) += peve * sigma_d_ / dp * (2 - diss(e, n) / dp) * dot_max;
112
113 // Jacobian w.r.t. omega
114 if (Mdiss)
115 (*Mdiss)(N * e + n, N * e + n) -= peve * sigma_d_ * (-1 / (dp * dp)) * dot_max;
116 }
117 }
118 }
119}
: class Champ_Inc_P0_base
DoubleTab & passe(int i=1) override
Returns field values at instant t-i.
DoubleTab & valeurs() override
Returns the array of field values at the current time.
classe Convection_diffusion_turbulence_multiphase Equation de transport des quantites turbulentes (k,...
void ajouter_blocs(matrices_t matrices, DoubleTab &secmem, const tabs_t &semi_impl={}) const override
class Domaine_VF
Definition Domaine_VF.h:44
Class defining operators and methods for all reading operation in an input flow (file,...
Definition Entree.h:42
virtual const Milieu_base & milieu() const =0
Matrice_Morse class - Represents a (sparse) matrix M, not necessarily square,.
DoubleVect & porosite_elem()
Definition Milieu_base.h:58
const Equation_base & equation() const
Returns the reference to the equation pointed to by MorEqn::mon_equation.
Definition MorEqn.h:62
static int dimension
Definition Objet_U.h:94
virtual Entree & readOn(Entree &)
Reads an Objet_U from an input stream. Virtual method to override.
Definition Objet_U.cpp:289
virtual Sortie & printOn(Sortie &) const
Writes the object to an output stream. Virtual method to override.
Definition Objet_U.cpp:278
Classe Operateur_Grad Generic class of the hierarchy of operators computing the gradient.
DoubleTab & calculer(const DoubleTab &, DoubleTab &) const override
Initializes the array passed as parameter with the contribution of the operator.
Base class for output streams.
Definition Sortie.h:52
const Champ_base & get_champ(const Motcle &nom) const override
_SIZE_ dimension_tot(int) const override
Definition TRUSTTab.tpp:160
int line_size() const
Definition TRUSTVect.tpp:67